Molding or forming apparatus.



No. 685,095. Patented Oct. 22, I901. G. BROWNING & c. E. BOUTWOOD.

MOLDING 0B FORMING APPARATUS.

(Application filed Feb. 7, 1901A (Nq Model.)

a E a 6 4 11/ A A A IIIQIJIIIIIIIII-IIIIIIIII UNITED STATES PATENTOFFICE.

GEORGE BROWNING, OF HINSDIALE, AND CHARLES EDWARD BOUTWOOD,

OF ROGERS PARK, ILLINOIS.

MOLDING OR FORMING APPARATUS.

srEcIEroArroN forming part of Letters Patent No. 685,095,. dated October22, 1901. Application filed February 7, 1901. Serial No. 46,301. (Nomodel.)

To all whom it may concern;

Be it known that we, GEORGE BROWNING, a subject of the King of GreatBritain, residing at Hinsdale, in the county of Dupage, and CHARLESEDWARD BOUTWOOD, a citizen of the United States, residing at RogersPark, in the county of Cook, State of Illinois, have invented certainnew and useful Improvements in Molding or Forming Apparatus, of whichthe following is a specification.

The present invention relates to that class of molding or formingapparatus in which the mass or body of the required material in a heatedstate is pressed between dies or molds into the finished shape of thearticle required.

The object of the present improvement is to provide a simple,compact,-and efficient apparatus capable of easy manipulation andaffording with safety a very high pressure upon the mold or die sectionsand which, while of special application to the manufacturing andfinishing of golf-balls, is also capable of useful adaptation to themanufacture of other articles for rubber or other allied plasticcompositions by the employment of pressure alone or pressure combinedwith a vulcanizing action, all as will hereinafter more fully appear,and be more particularly pointed out in the claims. We attain suchobjects by the construction and arrangement of parts illustrated in theaccompanying drawings, in which-'- Figure 1 is a vertical sectionalelevation of the present improved apparatus at line a: 00, Figs. 2 and3; Fig. 2, a plan view of the same with parts broken away; Fig. 3, aplan view of the lower fixed member of the apparatus.

Similar numerals of reference indicate like parts in the difierentviews.

Referring to the drawings, 1 represents the lower and fixed member ofthe apparatus, formed with an attaching flange or base 2, a cylindricalbody portion 3, the upper end of which is exteriorly screw-threaded, anda hollow central portion which may be either formed in a direct mannerinto the shape of the article to be molded,but preferably adapted toreceive a filling 4, of Babbitt or other like more flexible metal,whichfilling is chambered out to form the stationary mold or die proper ofthe apparatus, as shown.

5 is the upper and movable member of the apparatus, of a cyliu dricalform, the lower end of which is adapted to move in and be guided by anannular neck or extension 6 of the lower or fixed member 1 in manner toinsure rectilinear movement of the one member With relation to theother. Such upper and movable member, as in the case of the lower andfixed member 1, will be formed with a central mold-cavity, which may beformed either in a direct manner in the metal of the member 5, butpreferably by a filling or lining 7, of Babbitt or other like morefusible metal, which filling is chambered out in any usual manner toform the movable mold or die proper of the apparatus.

8 is a dowel-pin on one of the members engaging a corresponding hole inthe other member to prevent an independent turning movement of onemember with relation to the other.

9 is a cap-shaped compression-nut formed with an annular depending skirtinternally screw-threaded and adapted to engage the screw-threadedexterior of the lower or fixed member .1 of the apparatus and with apair of vertically-projecting side ears 10 for the passage of thecapstan bar or lever 11, by which the said compression-nut is forciblyrotated in the operation and use of the present apparatus. 12 representsa series of balls interposed between the upper or head portion of thecompression-nut 9 and the upper surface of the movable member 5, with aview to reduce the frictional contact between the two parts in anindependent rotation of the compression-nut. In our preferredconstruction, 13 is an interposed bearing-ring loosely connected to acentral vertical extension 14 of the movable member 5 by means ofconfining-pins 15. With such arrangement the balls are confined and heldin the track-race therefor in the top surface of the movable member 5,While at the same time the said bearing-ring is free to rotate with thecompression-nut 9 in its rotation independent of the said movable member5.

It is within the province of our present invention to modify theparticular shape of the parts shown in the drawings as the judgment ofthe constructor may deem best to suit the particular use or manufactureto which the present apparatus is applied.

Having thus fully described our said invention, what we claim as new,and desire to secure by Letters Patent, is-

1. In a molding or forming apparatus of the character herein described,the combination of a fixed member formed with a central mold or diecavity and a cylindrical body externally screw-threaded, a movablemember havin g a substantially counterpart construction, a compressionnut engaging the movable member and having a depending annular skirtinternally screw-threaded and having engagement by means of said skirtwith the fixed member, and means for rotating the compression-nut,substantially as set forth.

2. In a molding or forming apparatus of the character herein described,the combination of a fixed member formed with a central mold or diecavity and a cylindrical body externally screw-threaded, a movablemember having a substantially counterpart construction, a dowel-pin onone member, an orifice in the other member receiving said dowel-pin, acompression-nut engaging the movable member and having a dependingannular skirt internally screw-threaded and having engagement by meansof said skirt with the fixed member, and means for rotating thecompression-nut, substantially as set forth.

3. In a molding or forming apparatus of the character herein described,the combination of a fixed member formed with a central mold or diecavity and a cylindrical body externally screw-threaded, a movablemember of a substantially counterpart construction and having acylindrically-formed body, an annular neck or extension on the fixedmember forming a guide for the lower end of the movable member, acompression -nut engaging the movable member and having a dependingannular skirt internally screw-threaded and having engagement by meansof said skirt with the fixed member, and means for rotating thecompression-nut, substantially as set forth.

4. In a molding or forming apparatus of the character herein described,the combination of a fixed member formed with a central mold or diecavity and a cylindrical body external] y screw-threaded, a movablememberhavin g a substantially counterpart construction, a compressionnut engaging the movable member and having a depending annular skirtinternally screw-threaded and having engagement by means of said skirtwith the fixed member, a series of bearing-balls interposed between thecompression-nut and the movable member, and means for rotating thecompression-nut, substantially as set forth.

5. In a molding or forming apparatus of the character herein described,the combination of a fixed member formed with a central mold or diecavity and a cylindrical body externally screw-threaded, a movablemember having a substantially counterpart construction, a compressionnut engaging the movable member and having a depending annular skirtinternally screw-threaded and having engagement by means of said skirtwith the fixed member, a series of bearing-balls interposed between thecompression-nut and the movable member, a bearing-ring interposedbetween the series of balls and the compression-nut and secured to themovable member against disengagement, and means for rotattating thecompression-nut, substantially as set forth.

6. In a molding or forming apparatus of the character herein described,the combination of a fixed member formed with a central mold or diecavity and a cylindrical body externally screw-threaded, a movablemember having a substantially counterpart construction, a compressionnut engaging the movable member and having a depending annular skirtinternally screw-threaded and having engagement by means of said skirtwith the fixed member, a series of bearing-balls interposed between thecompression-nnt and the movable member, a bearing-ring interposedbetween the series of balls and the compression-nut and secured to themovable member against disengagement by means of a central extension onthe movable member, and confining means engaging said extension abovethe bearing-ring, and means for rotating the compression-nut,substantially as set forth.

In testimony whereof witness our hands this 2d day of February, 1901, atChicago, Illinois.

GEORGE BROWNING- ClIARLES EDWARD BOUTWOOD.

In presence of- HENRY A. Now, ROBERT BURNS.

